Home / 8,265.40-12,397.38-4,800.76

Finding the Fourth Proportional to 8,265.40, 12,397.38 and 4,800.76

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Solution

The fourth proportional to 8,265.40, 12,397.38 and 4,800.76 is: 7,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.40 : 12,397.38 = 4,800.76 : x
  2. Step 2: Convert to fraction form
    8,265.40/12,397.38 = 4,800.76/x
  3. Step 3: Cross multiply
    8,265.40x = 12,397.38 × 4,800.76
  4. Step 4: Simplify right side
    8,265.40x = 59,516,846.01
  5. Step 5: Solve for x
    x = 59,516,846.01/8,265.40
  6. Step 6: Final answer
    x = 7,200.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.